SL185028 bearing: complete specifications & equivalents

Specification table

Source: catalog reference (HR1 2026-09-25) · extracted 2026-09-30

Parameters extracted from the official FAG Rolling Bearings catalogue (HR1 2026-09-25); FAG® is a trademark of Schaeffler Technologies AG & Co. KG, used here for identification only — mpnbase is not an authorized FAG/Schaeffler distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at schaeffler.com.

Cross references & equivalents

Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.

How the SL185028 model number is decoded

envelope 140×210×95 mm with a 35.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 770 kN and C0 1330 kN; with a C/C0 ratio of 0.58 the 95 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 180 kN, the limiting speed 1,820 r/min and the thermal reference speed 1,180 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 5.50 kN per millimetre of the 140 mm bore and 8.11 kN per millimetre of the 95 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 11.1 kg (11100 g) (0.56 g per mm² of the 210×95 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads the 140 mm bore puts this execution at the top of the HR1 range — the 210 mm outside diameter, 95 mm width and 11.1 kg mass are built for primary-industry load cases The SL1850 tolerates no angular misalignment — the two roller rows distribute load only when shaft and housing axes are parallel, so housing bore alignment is a mounting requirement The semi-locating SL1850 structure uses inner-ring ribs with a retaining ring on the flangeless side; it carries high radial loads plus axial load in one direction, which is why it often pairs with an SL0149 locating bearing Typical applications include marine and offshore winch arrangements, rope drums and winch drums and hydraulic pumps and radial piston pumps, where the 210 mm outside diameter and 770 kN dynamic rating match the duty. In marine and offshore winch arrangements the unit fits a compact 140 mm seat, and in rope drums and winch drums the 11.1 kg mass is part of the rotor inertia calculation. Designers also specify it for hydraulic pumps and radial piston pumps, relying on the 95 mm width and the published 1330 kN static rating. There is no cage: do not apply caged-bearing speed rules — the printed limiting speed is a hard kinematic ceiling set by roller-to-roller contact. C0 is the number that tempts overload in slow machinery, but fatigue life is still governed by the dynamic C rating and lubricant film.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• There is no cage: do not apply caged-bearing speed rules — the printed limiting speed is a hard kinematic ceiling set by roller-to-roller contact.
• C0 is the number that tempts overload in slow machinery, but fatigue life is still governed by the dynamic C rating and lubricant film.
• The bearings cannot accommodate angular misalignment; check shaft and housing parallelism before blaming the bearing for edge spalling.